Wall panel



July 14, 1936. 1 SCHREIBER wALL PANEL Filed March 25J 1955 Patented July 14, 1936 UNITED STATES PATENT OFFICE wALL PANEL Application March 25,

6 Claims.

This invention relates to the construction of thermal insulating panels of the type adapted to be built up into walls and particularly as used in the construction of industrial ovens and similar structures, although equally adaptable for low temperature insulation purposes.

Panels of the type to which my invention relates comprise two spaced faces with insulating material therebetween, such insulating material being usually applied in a loose fibrous form, such as slag wool, asbestos, or other substances not sufiiciently compressed to be self-sustaining. Consequently it becomes necessary to make provision for maintaining a uniform distribution of the insulating filler throughout the panel. If no such provision is made, the filler in such panel will move downward and tend to pack in the lower part of the panel, leaving the upper part insufficiently insulated. This downward movement, under the influence of gravity, is increased by the necessary handling of the panels in build- 'ing the oven or other structure, and also vibrations in and about the oven, such as that of conveyor mechanism, and the like.

It is to the maintenance of proper distribution of the insulation, and to the avoidanceof such travel and packing as mentioned, that my invention is directed.

In making such panels it is necessary to provide a holding means which will not interfere with the proper manufacture and filling of the panels, and which will not increase the thermal conductivity between the spaced spaces of the panel. Also such means must not prevent the l ready handling and placing of the panels in building the structure.

To the accomplishment of the foregoing and related ends, said invention, then, consists of the means hereinafter fully described and particularly pointed out in the claims.

The annexed drawing and the following description set forth in detail certain structure embodying the invention, such disclosed means constituting, however, but one of various structural forms in which the principle of the invention may be used.

In said annexed drawing:

Fig. 1 is a view in perspective of a panel to which the present invention is applied;

Fig. 2 is a median section through the panel of Fig. 1 on a vertical plane;

Fig. 3 is a perspective illustrating on somewhat larger scale an end wall of the panel removed and showing the interior construction;

Panels oi.' the type to which this invention per- 1935, Serial No. 12,883

tains are ordinarily made of face plates I and 3 at front and back respectively fastened into a hollow structure by means of edge channels such as 5 and I and top channels such as 9 and II turned inward, and having the face plates suitably secured thereto, usually by spot welding. The designation of front and back is used arbitrarily herein for convenience of description, front designating the side which is exposed in the completed structure, although ordinarily the two faces are identical, and hence interchangeable. The description is written on the basis of a panel in upright position in a wall, although it will be appreciated that the panels can be used either vertically, inclined, horizontally, or otherwise, as convenience dictates. Similarly, while the panel is described as of rectangular construction, which is usual, the principles of the invention may be applied to panels of varied shapes or of curved construction, or otherwise modied to suit special circumstances.

The intermediate space is packed with some suitable insulating material I2, usually fibrous in nature and of relatively light weight.

The reduction of heat conductivity across the connections between the front and rear faces I and 3 is accomplished by making the connections 5, "I, 9, II with webs of open construction more or less on the order of a network. One means of accomplishing this is to slot the webs as at I3, I5 in staggered arrangement, thus making it necessary for the heat to travel across an indirect path, and reducing, so far as consistent with the necessary structural strength, the amount of metal available for heat transfer. 0

In thepreferred form of my invention, the yslots are cut on two sides and one end only, leaving a linger of metal such as I5 secured to the panel at one end as at I'I. 'Ihe fingers I5 are then bent about their respective ends I1, inwardly, and thus project into the interior space and serve to retain the-filling material against displacement, as shown in Fig. 2.

Since the only displacing action of any consequence to which the filling is subjected is downward, it is not necessary to have fingers projecting from the tops 9 and bottoms II.

In constructing the form of panel shown in Fig. 2 any convenient method may be followed, one being to lay the panel on its back, the face plate I not yet being fastened on. The filling is then put in, and the face plate I secured in position.

It will be seen from the foregoing that the principles of the article and method of making are capable of a variety o! modifications, within the scope oi the invention and that the resulting panel is light, free from any exterior projections, that the ber holding elements do not add to the heat conductivity, and that the ber is effectively prevented from movement in the handling of the panel or after the panel has gone into use.

Other modes of applying the principle of my invention may be employed instead of the one explained, change being made as regards the structure herein disclosed, provided the means stated by any of the following claims or the equivalent of such stated means be employed.

I therefore particularly point out and distinctly claim as my invention:

1. In a panel of the character described, comprising faces and edge channels, inwardly directed ber retaining means, said means comprising fingers struck inward from the channel webs of vertical edges and substantially horizontally directed, and said wall having openings left by the displacement of said ngers.

2. In a panel of the character described, a plurality of nger-like elements severed from the structure of an edge wall of the panel on sides and one end, and attached to said wall at the unsevered end, said elements being inwardly directed, thereby leaving slots through said edge wall.

3. In a panel of the character described, walls dening a hollow structure. a loosely disposed lling, and a plurality oi' inward projections cut on three sides through the wall and struck inwardly therefrom into transverse disposition to the packing tendency of said lling. said projections being arranged in staggered opposition.

4. A panel of the character described, comprising in combination walls forming a hollow structure, brous lling within' such structure, 5 parts of certain of said walls being turned inward from the planes of their respective walls, leaving voids through the walls, and forming supports transverse to the downward tendency of the lling, said supports not contacting any walls 1o except those from which they respectively spring.

5. A panel of the character described, comprising in combination walls of heat-conducting material, brous lling between said walls, the 16 face walls of said panel being unbroken, and the edge walls having narrow elongated slots entirely therethrough, staggered, with narrow bridging portions left between said slots, tongues attached to said bridging portions at one end and directed 20 inwardly, said slots comprising spaces originally lled by said tongues.

6. A panel of the character described comprising spaced metal plates and metal bridging pieces connecting the edges, said edge pieces hav- 25 ing narrow slots entirely therethrough, said slots being parallel to the long sides of the edge pieces and staggered, and tongues inwardly projecting from the upright edges but clear of said metal plates, said tongues being composed of material 30 from the slots and attached to the edges at one end, said material being of the i'ull thickness of the edge pieces and insulating brous material lllng said panel. said brous material being supported by said tongues against settling. 35

LOUIS SCHREIBER. 

